Bushing extractor and remover



BEST AVAILABLE cop.

Jan. 23, 1923.

' Lv H. PITZER.

BUSHING EXTRACTOR AND REMovER. FILED JUNE 20 1921 Patented Jan. 23, 1923.

Horrnn rrrznn, or ina'rr, Kansas.

iarrsnmefnir'rnncron AND, nnmovnn. 1

Application filed-lune 20, 1921. Serial No. 478,845.

To all whom it may concern:

Be it known that "I, LESLIE HOPPER PrrznR, a citizen of the United States, residing at Pratt, in the county of Pratt, State of Kansas, have, invented'anew and useful Bushing Extractor and Remover; and 1 do hereby declare the following tobe a full,

clear, and exact description of the invention, suchas, will enable others skilledin the art to which it appertains'to makeand use the.

' r a bend or break-thepistonlYwhich isof light:v

' construction and easily 'bent or broken. Extending outwardly from thelowerendflef the standard 1 a'rea'rms 7:, between therear ends of whichan i'lpwardly extending arm 8 V I is' pivotedat '9. Detachably'secured tozthe upper end 10 of the pivoted arm 8 is;a pun ch 11-; which epunch is substantially i in?v axial cut with the collar? 3 carriedtbyf the same.-- The invention relatesto-bushing removers and rep1acers-and=has fonits objeetto pro vide a device -of this character by'i'n'eansof which I bushings may be easily removed p d- A further objectis to provide a bushing remover and replacer particularly {adapted for removing bushings frorn 'p'istonsof internal combustion engines in such a manner as not to bend or break the pistons.

A further object is to provide a bushing remover and replacer adapted to be used in connection with pistons of internal combustion engines and comprising a standard, the upper end of which is provided with a chambered member adapted to engage the boss of a piston adjacent the bushing disposed therein, and to provide a punching element carried by a member pivoted to the standard, which member is forced inwardly through a leverage connection between the standard and the pivoted member.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a side elevation of the bushing remover showing a conventional form of piston held therein for removing the bushing therein.

Figure 2 is a top plan view of the bushing remover showing the same with the bushing punch removed.

Figure 3 is a detail sectional view through a portion of the punch carrying arm and a portion of a piston and its bushing.

Figure 4 is an end view ofthe bushing punch.

and 1 Referring to the drawings, the numeral 1 designates a standard which may-have its lower end 2hdisposed in a vice or inlany other suitable holding means. Removably disposed on the upper end of the standard 1 placed on the upper end of the standard 1 engages'the-boss '5 of the piston adjacent the bushing B which .is to be-removed by thebushing remover insuch a manner as not. to

ali

standard: 1, and is provided' with a ;reduced portion 12 which enters the bore of the bushing 6 and with an enlarged portion 13 thereby forming a shoulder for engaging the outer end of the bushing 6 in such a manner that when the arm 8 is forced inwardly said bushing 6 will be forced inwardly until it is removed from the piston 4. It is obvious that when it is desired to replace the bushing that the same can be replaced by substantially the same operation.

Secured to the pivoted arm 8 is a rearwardly extending Ushaped bracket 12 between the arms of which is pivotally mounted as at 13 an operating lever 14, by means of which lever the pivoted arm 8 is forced in the direction of the standard 1, during a bushing removing operation. Pivotally secured at 15 to the arm 16 of the lever 14 are forwardly and downwardly extending arms 17, which arms have their forward ends pivotally connected to transversely disposed bolts 18 substantially in the same horizontal plane as the pivotal point 13*. The arms 17 are pivoted to the standard 1 in relation to the pivotal point 13 in such a manner that during a bushing punching operation the punch 11 will remain in substantially axial alignment with the collar 3 thereby insuring the proper punching of the bushing from its bearing.

From the above it will be seen that a bushing punch is provided which is simple in construction and one particularly adapted for use in connection with bushings of pistons of internal combustion engines.

is-a collar 3, which collar when piston 1 is -'ment :cairriedby the.- pivoteded to :engage'r'tlierbus'liingjmnd leveri'meansi relation to ,eachntli'er',

it is necessary to remov'th' bushing andreplace the same.

The invention having been set 'fortli what is claimed as new and useiql.;is e 1. A bushing remover com )rising a standard; in; am; C3E-PiBd"'-bfz said standard and pivoted thereto, .a;' collar-.- carried.- bye. the

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the pivoted armat a point intermediate its end s an-@perating lever pivoted0 be -rearwardly extending-arm; and ''Safoinvardl-j and downwardly extending arm pivoted to the operating lever at one of its ends and to the standard'atfits forward end at a point in vsubstantiall '..the. same horizontal plane as "the pivotal point of the operating lever.

.:;;3. The combination with an internal combustion engine piston having a wrist pin bushing therein, said bushin'g extending through" a.- boss extending inwardly from standard-and-fadapted 'to'engage annartiole: the side wall of the piston,-of abushing-readjacent -a:bushing:therein-,-:a pnnching-mlk arm andadapt a:bnshingxfromraitsibeaning.

2.2 A bushingxremonen ;comprising-a stand+ ard; an -:.ar'm "carried: by; said standard pivoted thereto; .azcoll'ar carried ibyr; thestandard andnadaptedtd engage tan article adj a'eent the "f bu'shingir (30-91%: 5' rem'oved,

ladaptedstoz be'iforeedinto-engagemhnt witty one; end'of a for foncinggsaid (bush;

.- J.- OL-Cnmn;

1iwthe eollai' icanr-ied lbiy e a,-xearwardl extending :in n {bye mover therefor said-bushing remover com.-

prising a painof arms==pivotallyginovable inone-0a said arms :be \\-'hreby:said-pivoted'armmmy:be forc'eddm mgvprovided-with a collarof greater diamthe direction: of 'the rstanda'rdafdr gunohing-j the -bos's surrouhding the biushinggEa puneh- 2 ing ielementzcar-tied by;.onezof said-arms and andi positioned to engage the outer end of'therbushing-andft ei'enhneansawherebyz said a nis 1 maybefiforoedwtozward eaeh-other.-,

a? In. testimony where'ofli-haveg-signed my, zfiTpunohingielement carried byzthiiippn end name tothis-speeifioationintheqifesehce e1; -v

ofdthe'i arm :.pivoted1. -tor-the stander wand-i two subscribing witnesses. 1 LES IE I'IOPPERKPITZEli-i eter than thedmshing eandadaptedwto engage-- 

